20804927605

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{809}}^1\times {\mathrm{66797}}^1$

素因数の和:67629

約数の個数: 32

約数和(自身を含む): 31165274880

約数和(自身を除く): 10360347275

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 809, 4045, 5663, 8899, 28315, 44495, 62293, 66797, 311465, 333985, 467579, 734767, 2337895, 3673835, 5143369, 25716845, 54038773, 270193865, 378271411, 594426503, 1891357055, 2972132515, 4160985521, 20804927605]

約数ペア:

[(1, 20804927605), (5, 4160985521), (7, 2972132515), (11, 1891357055), (35, 594426503), (55, 378271411), (77, 270193865), (385, 54038773), (809, 25716845), (4045, 5143369), (5663, 3673835), (8899, 2337895), (28315, 734767), (44495, 467579), (62293, 333985), (66797, 311465)]